← California Kingsnake care guide
How Long Do California Kingsnakes Live?
California kingsnakes are commonly given a lifespan of 10 to 20 years. They are hardy and undemanding, so most of the variation within that range comes down to feeding discipline and housing rather than anything exotic.
Published lifespan figures
| Figure | Value | Notes |
|---|---|---|
| Commonly published | 10-20 years | The usual range quoted |
| Well-kept animals | Toward the upper end | Husbandry-dependent |
| Note | Captive figures exceed wild ones | As with most colubrids |
Checked September 20, 2026 against the sources at the foot of this page. Where sources differ the range is shown rather than averaged.
What actually shortens it
Published lifespans describe well-kept animals. The gap between the figure above and what a california kingsnake actually lives is almost entirely husbandry, and these are the levers that matter most.
Overfeeding
The commonest way a captive snake's life is shortened. Adults stop growing and keep being fed on a growth schedule, and obesity brings organ disease with it. Judge by body condition rather than by appetite, which stays enthusiastic regardless.
Unregulated heat
Thermal burns are among the most common reptile injuries, and snakes are particularly exposed because they coil against a heat source rather than moving off it. Every heat source on a thermostat.
Cohabitation
Unusually for a lifespan page, this belongs here. Kingsnakes eat other snakes, and a cohoused animal can have its life ended abruptly rather than shortened gradually.
Common questions
How long do California kingsnakes live?
Commonly 10 to 20 years in captivity, with well-kept animals toward the upper end. They are hardy snakes, and most of the variation comes from feeding and housing rather than inherent fragility.
What shortens a kingsnake's life?
Obesity from overfeeding is the usual gradual cause, along with unregulated heat. The abrupt cause is cohabitation: kingsnakes are ophiophagous and will eat another snake sharing their enclosure.
Do kingsnakes live longer in captivity?
Generally yes, as with most colubrids. Consistent food, stable temperatures and no predators produce longer lives than wild conditions allow.